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Weinreich DM, Sivapalasingam S, Norton T, Ali S, Gao H, Bhore R, Xiao J, Hooper AT, Hamilton JD, Musser BJ, Rofail D, Hussein M, Im J, Atmodjo DY, Perry C, Pan C, Mahmood A, Hosain R, Davis JD, Turner KC, Baum A, Kyratsous CA, Kim Y, Cook A, Kampman W, Roque-Guerrero L, Acloque G, Aazami H, Cannon K, Simón-Campos JA, Bocchini JA, Kowal B, DiCioccio AT, Soo Y, Geba GP, Stahl N, Lipsich L, Braunstein N, Herman G, Yancopoulos GD. REGEN-COV Antibody Combination and Outcomes in Outpatients with Covid-19. N Engl J Med 2021; 385:e81. [PMID: 34587383 PMCID: PMC8522800 DOI: 10.1056/nejmoa2108163] [Citation(s) in RCA: 390] [Impact Index Per Article: 130.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND In the phase 1-2 portion of an adaptive trial, REGEN-COV, a combination of the monoclonal antibodies casirivimab and imdevimab, reduced the viral load and number of medical visits in patients with coronavirus disease 2019 (Covid-19). REGEN-COV has activity in vitro against current severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern. METHODS In the phase 3 portion of an adaptive trial, we randomly assigned outpatients with Covid-19 and risk factors for severe disease to receive various doses of intravenous REGEN-COV or placebo. Patients were followed through day 29. A prespecified hierarchical analysis was used to assess the end points of hospitalization or death and the time to resolution of symptoms. Safety was also evaluated. RESULTS Covid-19-related hospitalization or death from any cause occurred in 18 of 1355 patients in the REGEN-COV 2400-mg group (1.3%) and in 62 of 1341 patients in the placebo group who underwent randomization concurrently (4.6%) (relative risk reduction [1 minus the relative risk], 71.3%; P<0.001); these outcomes occurred in 7 of 736 patients in the REGEN-COV 1200-mg group (1.0%) and in 24 of 748 patients in the placebo group who underwent randomization concurrently (3.2%) (relative risk reduction, 70.4%; P = 0.002). The median time to resolution of symptoms was 4 days shorter with each REGEN-COV dose than with placebo (10 days vs. 14 days; P<0.001 for both comparisons). REGEN-COV was efficacious across various subgroups, including patients who were SARS-CoV-2 serum antibody-positive at baseline. Both REGEN-COV doses reduced viral load faster than placebo; the least-squares mean difference in viral load from baseline through day 7 was -0.71 log10 copies per milliliter (95% confidence interval [CI], -0.90 to -0.53) in the 1200-mg group and -0.86 log10 copies per milliliter (95% CI, -1.00 to -0.72) in the 2400-mg group. Serious adverse events occurred more frequently in the placebo group (4.0%) than in the 1200-mg group (1.1%) and the 2400-mg group (1.3%); infusion-related reactions of grade 2 or higher occurred in less than 0.3% of the patients in all groups. CONCLUSIONS REGEN-COV reduced the risk of Covid-19-related hospitalization or death from any cause, and it resolved symptoms and reduced the SARS-CoV-2 viral load more rapidly than placebo. (Funded by Regeneron Pharmaceuticals and others; ClinicalTrials.gov number, NCT04425629.).
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MESH Headings
- Adolescent
- Adult
- Antibodies, Monoclonal, Humanized/administration & dosage
- Antibodies, Monoclonal, Humanized/pharmacokinetics
- Antibodies, Monoclonal, Humanized/pharmacology
- Antibodies, Neutralizing/administration & dosage
- Antibodies, Neutralizing/pharmacology
- Antiviral Agents/administration & dosage
- Antiviral Agents/pharmacokinetics
- Antiviral Agents/pharmacology
- COVID-19/mortality
- Dose-Response Relationship, Drug
- Double-Blind Method
- Drug Combinations
- Female
- Hospitalization/statistics & numerical data
- Humans
- Kaplan-Meier Estimate
- Male
- Middle Aged
- Pregnancy
- Pregnancy Complications, Infectious/drug therapy
- Proportional Hazards Models
- Viral Load/drug effects
- Young Adult
- COVID-19 Drug Treatment
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Affiliation(s)
- David M Weinreich
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Sumathi Sivapalasingam
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Thomas Norton
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Shazia Ali
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Haitao Gao
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Rafia Bhore
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Jing Xiao
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Andrea T Hooper
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Jennifer D Hamilton
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Bret J Musser
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Diana Rofail
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Mohamed Hussein
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Joseph Im
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Dominique Y Atmodjo
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Christina Perry
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Cynthia Pan
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Adnan Mahmood
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Romana Hosain
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - John D Davis
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Kenneth C Turner
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Alina Baum
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Christos A Kyratsous
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Yunji Kim
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Amanda Cook
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Wendy Kampman
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Lilia Roque-Guerrero
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Gerard Acloque
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Hessam Aazami
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Kevin Cannon
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - J Abraham Simón-Campos
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Joseph A Bocchini
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Bari Kowal
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - A Thomas DiCioccio
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Yuhwen Soo
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Gregory P Geba
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Neil Stahl
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Leah Lipsich
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Ned Braunstein
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - Gary Herman
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
| | - George D Yancopoulos
- From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) - both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) - both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington, Wilmington, NC (K.C.); Köhler and Milstein Research, Hospital General Agustín O'Horan, Mérida, Mexico (J.A.S.-C.); and the Willis-Knighton Physician Network, Shreveport, LA (J.A.B)
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Sadoff J, Le Gars M, Shukarev G, Heerwegh D, Truyers C, de Groot AM, Stoop J, Tete S, Van Damme W, Leroux-Roels I, Berghmans PJ, Kimmel M, Van Damme P, de Hoon J, Smith W, Stephenson KE, De Rosa SC, Cohen KW, McElrath MJ, Cormier E, Scheper G, Barouch DH, Hendriks J, Struyf F, Douoguih M, Van Hoof J, Schuitemaker H. Interim Results of a Phase 1-2a Trial of Ad26.COV2.S Covid-19 Vaccine. N Engl J Med 2021; 384:1824-1835. [PMID: 33440088 PMCID: PMC7821985 DOI: 10.1056/nejmoa2034201] [Citation(s) in RCA: 803] [Impact Index Per Article: 267.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Efficacious vaccines are urgently needed to contain the ongoing coronavirus disease 2019 (Covid-19) pandemic of infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). A candidate vaccine, Ad26.COV2.S, is a recombinant, replication-incompetent adenovirus serotype 26 (Ad26) vector encoding a full-length and stabilized SARS-CoV-2 spike protein. METHODS In this multicenter, placebo-controlled, phase 1-2a trial, we randomly assigned healthy adults between the ages of 18 and 55 years (cohort 1) and those 65 years of age or older (cohort 3) to receive the Ad26.COV2.S vaccine at a dose of 5×1010 viral particles (low dose) or 1×1011 viral particles (high dose) per milliliter or placebo in a single-dose or two-dose schedule. Longer-term data comparing a single-dose regimen with a two-dose regimen are being collected in cohort 2; those results are not reported here. The primary end points were the safety and reactogenicity of each dose schedule. RESULTS After the administration of the first vaccine dose in 805 participants in cohorts 1 and 3 and after the second dose in cohort 1, the most frequent solicited adverse events were fatigue, headache, myalgia, and injection-site pain. The most frequent systemic adverse event was fever. Systemic adverse events were less common in cohort 3 than in cohort 1 and in those who received the low vaccine dose than in those who received the high dose. Reactogenicity was lower after the second dose. Neutralizing-antibody titers against wild-type virus were detected in 90% or more of all participants on day 29 after the first vaccine dose (geometric mean titer [GMT], 212 to 354), regardless of vaccine dose or age group, and reached 96% by day 57 with a further increase in titers (GMT, 288 to 488) in cohort 1a. Titers remained stable until at least day 71. A second dose provided an increase in the titer by a factor of 2.6 to 2.9 (GMT, 827 to 1266). Spike-binding antibody responses were similar to neutralizing-antibody responses. On day 15, CD4+ T-cell responses were detected in 76 to 83% of the participants in cohort 1 and in 60 to 67% of those in cohort 3, with a clear skewing toward type 1 helper T cells. CD8+ T-cell responses were robust overall but lower in cohort 3. CONCLUSIONS The safety and immunogenicity profiles of Ad26.COV2.S support further development of this vaccine candidate. (Funded by Johnson & Johnson and the Biomedical Advanced Research and Development Authority of the Department of Health and Human Services; COV1001 ClinicalTrials.gov number, NCT04436276.).
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Affiliation(s)
- Jerald Sadoff
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Mathieu Le Gars
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Georgi Shukarev
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Dirk Heerwegh
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Carla Truyers
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Anne M de Groot
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Jeroen Stoop
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Sarah Tete
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Wim Van Damme
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Isabel Leroux-Roels
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Pieter-Jan Berghmans
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Murray Kimmel
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Pierre Van Damme
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Jan de Hoon
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - William Smith
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Kathryn E Stephenson
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Stephen C De Rosa
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Kristen W Cohen
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - M Juliana McElrath
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Emmanuel Cormier
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Gert Scheper
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Dan H Barouch
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Jenny Hendriks
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Frank Struyf
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Macaya Douoguih
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Johan Van Hoof
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
| | - Hanneke Schuitemaker
- From Janssen Vaccines and Prevention, Leiden, the Netherlands (J. Sadoff, M.L.G., G. Shukarev, A.M.G., J. Stoop, S.T., E.C., G. Scheper, J. Hendriks, M.D., J.V.H., H.S.); Janssen Research and Development, Beerse (D.H., C.T., F.S.), Janssen Clinical Pharmacology Unit, Merksem (W.V.D.), the Center for Vaccinology, Ghent University, Gent (I.L.-R.), SGS Life Sciences (P.-J.B.) and the Center for the Evaluation of Vaccination, University of Antwerp (P.V.D.), Antwerp, and the Center for Clinical Pharmacology, University Hospitals Leuven, Leuven (J. de Hoon) - all in Belgium; Optimal Research, Melbourne, FL (M.K.); the Alliance for Multispecialty Research, Knoxville, TN (W.S.); the Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston (K.E.S., D.H.B.); and the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle (S.C.D.R., K.W.C., M.J.M.)
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